Orphan receptor proteins deliver two knock-out punches to glioblastoma cells

The scientists say when activated, one protein, called the short form, stops glioblastoma cells from replicating their DNA, and the other, called the long form, prevents cell division if the DNA has already been replicated, explains Rebecca Riggins, PhD, assistant professor of oncology at Georgetown Lombardi. The study was posted online Dec. …

Multiple allergic reactions traced to single protein

Previous studies traced reactions such as pain, itching and rashes at the injection sites of many drugs to part of the immune system known as mast cells. When specialized receptors on the outside of mast cells detect warning signals known as antibodies, they spring into action, releasing histamine and other substances that spark inflammation and draw other immune cells into the area. Those antibodies are produced by other immune cells in response to bacteria, viruses or other perceived threats…

Survey of the general population in France identifies knowledge gaps in the perception of lung cancer

Lung cancer management in recent years has improved patient outcomes because of screening, improved surgery and radiotherapy in early and locally-advanced stages of disease, new chemotherapies, validated maintenance therapy, and effective targeted therapies. However, fears or misperceptions about lung cancer may alter physician-patient communications and could delay lung cancer screening, diagnosis, or treatment…

New class of synthetic molecules mimics antibodies — ScienceDaily

The new molecules — synthetic antibody mimics (SyAMs) — attach themselves simultaneously to disease cells and disease-fighting cells. The result is a highly targeted immune response, similar to the action of natural human antibodies. “Unlike antibodies, however, our molecules are synthetic organic compounds that are approximately one-twentieth the size of antibodies,” said David A. Spiegel, a professor of chemistry at Yale whose lab developed the molecules…

How breast cancer cells break free to spread in body

A gene normally involved in the regulation of embryonic development can trigger the transition of cells into more mobile types that can spread without regard for the normal biological controls that restrict metastasis, the new study shows. Analysis of downstream signaling pathways of this gene, called SNAIL, could be used to identify potential targets for scientists who are looking for ways to block or slow metastasis. “This gene relates directly to the mechanism that metastatic cancer cells use to move from one location to another,” said Michelle Dawson, an assistant professor in the School of Chemical and Biomolecular Engineering at the Georgia Institute of Technology…

Male, female breast cancers are not identical — ScienceDaily

Dr. Fatima Cardoso of the Champalimaud Clinical Center in Lisbon and coordinator of this study says, “This study aims to characterize the biology of this rare disease; only with this crucial knowledge will men with breast cancer be properly treated in the future, which will definitely improve both their survival and quality of life.” Of all cancers diagnosed in males, breast cancer accounts for less than one percent, and male breast cancer also accounts for less than one percent of all breast cancer diagnoses. …